Why the texture is not glowing
First of all the emission is obviously working:

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so the question would be in my opinion on how to make it more obvious that there is an emission going on. 

Here I suggest two routes:

First, adding additional geometry, that the light can actually illuminate(scatter or reflect upon). So once this is put in a scene the problem will solve it self. 

If the object needs to be standalone, you can add a plane for it to rest on and add lens effects that make the illumination bounce in the camera.

Also tweaking the filmic color management might give you the desired effect.

Here is my short effort:



see here and here for reference

This part might also be interesting